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Subsequent Events - Additional Information (Detail) $ in Thousands									3 Months Ended
	Apr. 04, 2025	Apr. 03, 2025 USD ($) Engine AirCraft Airframes	Mar. 18, 2025	Jan. 31, 2025 USD ($) AirCraft	Jan. 01, 2025 USD ($) Airframes	Dec. 31, 2024 USD ($) AirCraft	Dec. 23, 2024	Jan. 13, 2023	Dec. 31, 2024 USD ($) AirCraft Airframes	Dec. 31, 2023 USD ($)
Subsequent Event [Line Items]
Impairment loss									$ 3,500
Net (loss) income									114,558	$ 57,850
E-175 Aircraft [Member]
Subsequent Event [Line Items]
Impairment loss									60,700
Net (loss) income									$ 46,700
Number of aircraft sold | AirCraft									10
CRJ-900 Airframes [Member]
Subsequent Event [Line Items]
Impairment loss									$ 1,500
Number of aircraft sold | Airframes									2
UST Loan [Member]
Subsequent Event [Line Items]
Minimum collateral coverage ratio							1.55
UST Loan [Member] | Minimum [Member]
Subsequent Event [Line Items]
Minimum collateral coverage ratio							0.99
Subsequent Event [Member]
Subsequent Event [Line Items]
Percentage of increase in CPA block hour rates	3.00%
Number of engines to be sold | Engine		23
Remaining balance				$ 73,400
Subsequent Event [Member] | UST Loan [Member] | Minimum [Member]
Subsequent Event [Line Items]
Minimum collateral coverage ratio			0.91
United Capacity Purchase Agreement [Member] | United Airlines Inc [Member]
Subsequent Event [Line Items]
Common stock issued equivalent percentage of issued and outstanding capital stock								10.00%
United Capacity Purchase Agreement [Member] | Subsequent Event [Member] | United Airlines Inc [Member]
Subsequent Event [Line Items]
Common stock issued equivalent percentage of issued and outstanding capital stock	6.00%
United Aircraft Purchase Agreement [Member] | Subsequent Event [Member] | E-175 Aircraft [Member]
Subsequent Event [Line Items]
Expected proceeds from sale of asset		$ 16,300
Number of aircraft classified as assets held for sale | AirCraft				10
Expected gross proceeds from sale of asset				$ 49,400
Net (loss) income				7,300
Gross proceeds from sale of asset				$ 122,900
Number of aircraft sold | AirCraft		23
Engines Held For Sale [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Impairment loss		$ 14,700			$ 25,400
Airframe Purchase Agreement [Member] | Subsequent Event [Member] | CRJ-900 Airframes [Member]
Subsequent Event [Line Items]
Gross proceeds from sale of asset		$ 9,100
Number of aircraft sold | Airframes		14			1
Airframe Purchase Agreement [Member] | Subsequent Event [Member] | CF34-8C Engines [Member]
Subsequent Event [Line Items]
Number of aircraft sold | Airframes					5
Aircraft Purchase Agreement [Member] | E-175 Aircraft [Member]
Subsequent Event [Line Items]
Expected proceeds from sale of asset						$ 84,700
Expected gross proceeds from sale of asset						$ 227,700
Number of aircraft sold | AirCraft						18
Aircraft Purchase Agreement [Member] | Subsequent Event [Member] | UST Loan [Member]
Subsequent Event [Line Items]
Repayments of debt					$ 6,500
Gross proceeds from sale of asset					$ 6,800

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